Daily Maintenance; Maintenance Equipment - Mitsubishi Electric MDS-B-SPJ2 Series Specification Manual

10. Daily Maintenance

1. Wait 10 minutes or more after turning the power OFF before carrying out maintenance or
inspections. Failure to do so may result in electric shocks.
2. Maintenance and inspections must always be carried out by a qualified technician. There is a
danger of electric shocks if they are carried out by unqualified persons. Contact the nearest
Mitsubishi Service Center or Service Station for repair and parts replacement.
Proper maintenance and inspections are essential for realization of the device's performance,
for preventing accidents, and for continued reliable operation over long periods.
Caution : Electric shocks can lead to serious accidents. Be sure to check that all power is
turned OFF before carrying out inspections in which the power does not need to be
turned ON.
Always check that the charge lamp is not lit.

10.1 Maintenance equipment

(1) Measuring devices
The following measuring devices are required to check whether the correct power is being
supplied to the amplifier, whether the amplifier wiring is correct, etc.
Device
Tester
Oscilloscope
AC
voltmeter
DC
voltmeter
AC current
ammeter
(2) Tools
Driver ( : Large and medium size,
+
10. Daily Maintenance
Conditions
Measures AC power voltage.
Tolerance of ±2% or less.
Max. graduation 10V, 30V
Tolerance of ±2% or less.
–
CAUTION
Check that the wiring to the amplifier is
correctly carried out before turning the power
ON.
For general measurement and
troubleshooting.
For measuring the AC power voltage supplied
to the amplifier.
For measuring the DC power voltage.
For measuring the AC supplied to the motor.
: small size)
10 − 1
Application